kinnard



No. 6l6,938. Patented Jan. 3, i899.

W. M. KINNARD.

PAPER VESSEL.

(Apph t filed Jan 16 1897) .2 Sheets-Sheet I.

(No Model.)

No. elapse. Patented Ian. 3, I899.

W. M. KlNNARH.

PAPER VESSEL.

(Application filsd J's-n. 16, 1897.)

(No Model.) 2 Sheets-Shoat 2.

ms vmals PETERS cu, vnuvournu. wAsumc-You, n, c.

UNITED STATES PATENT OFFICE.

WILL M. KINNARD, OF DAYTON, OHIO, ASSIGNOR TO THE KINNARD MANU- FACTURING COMPANY, OF SAME PLACE.

PAPER VESSEL.

SJPEGIFIGATION forming part of Letters Patent No. 616,938, dated January 3, 1899.-

' Application filed'J'anuary 1e,1a97. Serial. No. 619,408. a. model.)

To all whmn it may concern:

Be it known that I, 'WILL M. KINNARD, a citizen of the United States, residing at Day'- ton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Paper Vessels, of which the following is a full, clear, and exact descrip tion, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to paper vessels used more especially for carrying liquid or semiliquid substances, and is intended more par ticularly for temporary use in delivering or handling such substances rather than for their storage, and has for its object the production of a more perfectly water-tight or slop-proof vessel than those heretofore in use, as well as a lighter and more inexpensive one.

The novelty of the invention will be hereinafter explained,and more particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective View of the vessel with the lid raised. Fig. 2 is a perspective view of the same with the lid closed and a part cut away at the bottom to show the structure. Fig. 3 is a vertical cross-section. Fig. 4 is a per spective View of the section of the binding edge or brace. Fig. 5 is a side elevation of a nest of these vessels placed in this position for storage or transportation. Fig. 6 is a blank from which the walls of the vessel are made. Fig. 7 is a perspective view of the bottom piece. I

Same letters of reference are used to indi-- cate identical parts in all the figures.

It is desirable to produce a vessel which W shall .be convenient and attractive in shape,

which can be constructed from the smallest amount of material, both for the purposes of economy and lightness, which shall be water- .proof and slop-proofthat is, so constructed that the jarring or splashing of the contents against the top will not result in anyleakage and it is also desirable that they should be so constructed as to nest one in another for packing to take up as little space as possible in transportation or storage.

The most convenient form or shape of the vessel is that of the ordinary well-known form better quality of paper can be used, and by making the double walls the requisite stiifness, and rigidity are secured and a neater vessel is produced.

To form the inner wall A of the pail, the blank shown in Fig. 6 is placed around a form which is of exactly the size and shape of the inside of the intended pail, so that the-edges a a of the blank just meet firmly and closely. It is held in this position and the bottom is then applied. The bottom consists of a disk of paper, preferably heavier and stiffer than that which has been used to form the inner wall and of a greater diameter than the bottom of the pail. This disk is placed in a shallow mold, where it is subjected to the pressure of a plunger made to fit the mold and smaller than the mold only by the thickness of the disk of paper. This. pressure causes the edge to turn up all around at an angle to the bottom, as shown in Fig. 7. This bottom 0 is then placed in position over the narrow-end of the inner wall A, its outer edges 0 encircling the lower edges of the inner wall A, as seen in Fig. 3, a sufficient amount of glue having been applied to the edges to make it adhere firmly in place when it is pressed by a properly-formed mold. A second blank, shaped'precisely like the one used to make the inner wall A, but sufficiently longer to reach completely around it, is then placed place and the whole is subjected to snfficient 1 pressure to leave a perfectly smooth finished surface. The edges of the bottom are thus inelosed between the inner and outer wall, and the edges of the blank forming the inner and outer wall coming at opposite sides there is no seam through the vessel at any point and it is entirely water-tight and at the same time produces a smooth unbroken surface both inside and out. The edges 0 of the bottom may extend up between the outer and inner side walls any desired distance, but must extend up far enough to secure a perfectly tight impervious joint.

In order to give strength to the upper edge of the vessel, I brace it either with strips of stiff paper glued around on the outer and inner side or preferably with a strip of thin sheet metal-as for instance, tin folded upon itself, as shown in Fig. 4the inner leg F coming on the inside and the outer leg E on the outside of the upper edge of the vessel and the two embracing it. In order to prevent buckling of the inner leg F, it may be cut into the saw-tooth shape shown in Fig. 4, corrugated, though in practice I have found that the small portion 19, cut out to form lugs extending up over the top of the vessel, is sufficient to prevent any buckling. This strip of tin thus folded upon the upper edge of the vessel is pressed tightly in place in any convenient manner. The preferred method is to place the vessel ina tapering form made to fit it and then forcing a plunger down into the top a sufficient distance to clamp the tin firmly upon the edges of the paper. I This plunger is provided with radial arms, on the ends of which are points. These arms are forced outwardly until the points have penetrated the inner leg F of the tin, as seen at f, and by slightly breaking the tin form a bur on the inner or under side, which is driven into the paper and locks this metal brace securely in place, or, if these arms are not used, the points of the teeth, as shown in Fig. 4, are driven into the paper a sufficient distance to lock them in place.

To provide a lid for the bucket which shall be simple, economical, and light I use a disk of paper slightly larger in diameter than the top of the pail and sufficiently stiff to give it the requisite firmness and subject it to a pressure between molds, causing the edge It to be turned at an angle to the body of the lid K, or it may be made in a saucer shape with edges turned up at an angle. This upturned edge or flange 7c is somewhat creased or crimped by the pressure in producing it, and these crimps or creases take up the surplus material when the circle of the outer edge is shortened, as the flange is turned up more into a perpendicular position. When free from pressure, the elasticity of the material gives this flange a natural tendency to flatten out; but the angle of these edges it corresponds substantially to the angle or slant of the walls of the pail. When the lid is in place, they extend upwardly, so that as the lid is pushed down the edge at the creased line M comes in contact with the inner surface of the wall A, and the farther the lid is pressed down the greater the pressure and the tighter the joint formed. At the same time the upright edges form a long surface of contact between the lid and the inner wall, thus effectually closing the vessel against any leakage, the natural tendency of these edges is to spread outwardly serving to more completely close the joint.

The lid K may be attached to the pail in any convenient way in order to prevent its separation when not in use; but I prefer to connect it by a very simple hinge. A small strip of tin L is doubled upon itself and pressed and looked over the edge 70 in the same manner that the strip of tin E F is fastened upon the upper edge of the pail; but the ends of this strip L, as shown at Z, are not pressed down upon the edges of the lid K, but are rolled upon themselves to form an eye to receive a wire, and a portion J of the inner leg F of the strip used to brace the top of the vessel is also rolled upon itself to form an eye, and a wire or pin is passed through these eyes Z Z and J, thus forming a hinge. It is desirable to have the lid fastened to the vessel, so as always to be convenient and ready for use, and each vessel will always have its own lid.

The lid K, when the vessel is closed, as shown in Fig. 2, can be held in place by bending the lugs P firmly over upon the edge 7.; and cannot be removed without breaking these lugs or straightening them again. When the vessel is empty and open, the lid hangs over at a greater or less angle to the top of the vessel and is of course reversed or upside down, and both the vessels and the lids can be nested very closely, as shown in Fig. 5, so that a large quantity of them can be putin a small space for storage or transportation.

The metal or stiff paper edge or brace E F also serves as a firm strong point of attachment for the bail S, which may be made of wire, the ends of which are passed through small holes in the brace E F on opposite sides of the pail and then bent or clenched.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. A paper vessel having an outer and inner wall consisting of separate sheets of paper secured together substantially throughout their surfaces, and embracing between them the turned-up edges of a disk forming a bottom, substantially as shown and described.

2. A paper vessel formed of two separate blanks rolled one within the other and em bracing between them the turned-up edges of the bottom and having their upper edges braced and bound together by'a strip of stiffer material, having the inner portion or leg partially cut away or corrugated substantially as shown and described.

3. A paper vessel circular in horizontal cross-section and having its vupper edges partially cut away or corrugated over the.

upper edges of the pail and locked in place, substantially as shown and described.

l. In combination with a paper vessel or pail circular in horizontal cross-section, the sheet-metal braces consisting of a strip folded upon itself with portions of the inner leg F,'remaining upright or unfolded to form lugs to be bent down upon the lid to lock it in place, substantially as shown and described.

5. A paper vessel having double side walls secured together substantially throughout their surfaces and a bottom whose edges are bent up and embraced between the innerand outer side walls, substantially as shown and described.

6. A paper vessel whose side walls consist of two pieces or blanks of paper rolled into a tapering cylinder one within the other, the edges of each blank meeting but not registering with the edges of the other blank, and provided with a sheet-metal brace for the top edges, having the legs P, P, substantially as and for the purpose described.

7. A paper vessel whose side walls consist of an inner and outer sheet of blank paper curved into a tapering cylindrical form until the edges of each oyerlap but do not register with the edges or the lap of the other, and whose bottom consists of a disk with edges turned up between said inner and outer walls, substantially as and for the purpose described.

8. In combination with a paper vessel, the upper brace consisting of a strip of sheet metal folded upon itselfwith inner and outer legs E, F, part of said inner leg cut away to form lugs and a hinge, substantially as described. v

9. In combination with a paper vessel, the upper brace consisting of a strip of sheet metal folded upon itself with inner and outer legs E, F, the inner leg partially cut away or corrugated and locked in place bybnrs slightly penetrating the walls of the vessel, substantiallyas shown and described. I

10. In combination with a paper vessel circular in horizontal cross-section, and tapering outwardly from the bottom toward the top, a hinged lid consisting of a single piece whose edges are turned up at an angle and slightly creased or crimped forming a flexible or yielding flange, which is held parallel with the walls of the vessel when the lid is forced down into the mouth of the same, substantially as and for the purpose described.

11. In combination with a paper vessel circular in horizontal cross-section and tapering outwardly from the bottom toward the top, a saucer-shaped paper lid whose flexible edges are slightly creased or crimped fit with in the top of the vessel, so as to press more tightly against the inner walls of the vessel as the lid is pressed'downward, substantially as shown and described.

'12. A paper vessel, circular in horizontal cross-section provided with a brace embracing the upper edges to which is hinged a lid arranged to turn back when open, so that both vessel and lid will nest with others for the purpose and in the manner specified.

WVILL M. KINNARD.

Witnesses GEORGE HEIDMAN, HARVEY EDWARns. 

